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6.0L Performance Parts Discussion What has or has not worked for you?

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Old 08-29-2010, 06:42 PM
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exhaust and turbo

just got a 2004 6.0 with 160,000 miles. was thinkng about putting a 4 inch mbrp straight pipe. is this the best way to go for a 6.0 or should i put a muffler. i figured if i really want that garret variable vane to scream i mite as well straight pipe it. and also, i ve heard some of the 04 trucks had the loud 10 vane turbos like on the 03's. my build date is july of 2003, so would i have the 10 vane or 13 vane turbo?v any help is appreciated
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Old 08-30-2010, 05:36 AM
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anyone have an idea about the turbo? is it an 03 turbo, the loud whistling one?
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Old 08-30-2010, 06:36 AM
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I have an 03 with a Diamond Eye 4" exhaust. It only had one of those race mufflers that you could see right through. However, it had a perferated baffling system that did a damn good job of eliminating the high pitched scream of the turbo. You could still hear it though.
Last thursday, I swapped the muffler for a 4" insert pipe. So now I only have 4" pipe all the way through, and it screams like crazy! I'm thinking of putting the muffler back on it's so loud. It sounds like a jet, and that's no exageration. Even when the truck gets turned off, the turbo "powers down" with a slowing whistle.
So, you might want to have the muffler available as an option just in case you think it's too loud for you.

One day I'll get a sound clip.

Last edited by Texas~KR; 08-30-2010 at 06:39 AM.
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Old 08-30-2010, 06:37 AM
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I remember reading a similar question on another site, so I searched it. Ford made the update from the 10 blades to the 13 blades Sept. 29, 2003.
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Old 08-30-2010, 06:47 AM
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Here is a before and after straight pipe video I made. I was running Summit Racing SS 4" exhaust with thier muffler, no kitty. Then I went and deleted thier muffler (a.k.a. straight pipe).
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Old 08-30-2010, 07:09 AM
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^^^That's a pretty good sound clip and depicts the turbo sound you get at idle, but it does sound louder to me in real life. I live in a neighborhood, and the whistle just echoes between the houses at low speed. lol
I don't mind it on the road, but I do try to respect my neighbors. That's why I'm throwing these comments out there. Some live in the country, some in residential neighborhood. If I didn't, I wouldn't have second thoughts about it cause it sounds awesome, especially the actual motor noise when you get on it.
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Old 08-30-2010, 07:14 AM
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Quote:
Originally Posted by Lilpooh View Post
I remember reading a similar question on another site, so I searched it. Ford made the update from the 10 blades to the 13 blades Sept. 29, 2003.
You didn't research it well because they went from 10 to 12 vanes in the 04 and then to 15 in the 05-07.
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Old 08-30-2010, 08:25 AM
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Originally Posted by PGreenSVT View Post
You didn't research it well because they went from 10 to 12 vanes in the 04 and then to 15 in the 05-07.
My Bad, I was too busy looking for the date, wasn't paying attention to the blade count. OOPS!!
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Old 08-30-2010, 08:29 AM
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Originally Posted by Texas~KR View Post
^^^That's a pretty good sound clip and depicts the turbo sound you get at idle, but it does sound louder to me in real life. I live in a neighborhood, and the whistle just echoes between the houses at low speed. lol
I don't mind it on the road, but I do try to respect my neighbors. That's why I'm throwing these comments out there. Some live in the country, some in residential neighborhood. If I didn't, I wouldn't have second thoughts about it cause it sounds awesome, especially the actual motor noise when you get on it.
Your right, it is louder in person. Video really does it no justice.
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Old 08-30-2010, 08:55 AM
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Plus, the video can't pick up some of the higher frequencies. Sometimes, the turbo sound is ear-piercing.
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